Which side of the plane?
-
I have a plane and a group of points. How do I find out which side of the plane a particular point is on? I want all the points that are on the same side as a given point. All I can think of is to project each point onto the plane, and then get a vector between each point and it's projection, and then compare the directions of those vectors. Is there an easier way?
-
That's about it!
If the plane is from a face the face.normal is easily found.
You could also extract the plane's vector from it's 'array' ?
Project the original_point onto the plane, then offset! that cloned_point along the plane's 'normal' vector by the distance between the original_point and its projected cloned_point... and then if cloned_point == original_point the original_point is in front of the plane, otherwise it's behind the plane; you should also check separately for the original_point being exactly on the plane... and decide whether that counts or not.
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login
Advertisement